Wireman 2nd year mcq

Wireman – Semester 4 Module 2 – Generation and transmission

11 : Which is the transformation ratio?

12 : What is the name of transformer part?
A : ON load tap changer
B : H.V. Bushing termination
C : Manual tap changer
D : L.V. Bushing termination

13 : Which factor the copper loss of a transformer depends?
A : Current
B : Voltage
C : Square of current
D : Square of voltage

14 : Which is having high efficiency?
A : Transformer
B : Alternator
C : AC motor
D : DC motor

15 : Which formula is used to calculate the efficiency of transformer?

16 : Which is the formula for percentage voltage regulation?

17 : Which material is used for transformer bushings?
A : PVC
B : Porcelain
C : Plastic
D : Baklite